Trisha Faith B. Capinpuyan and Therese June V. Aranas, “Teaching Children with Autism Spectrum Disorder to Request Objects Utilizing the Picture Exchange Communication System”, IJSBAR, vol. 75, no. 1, pp. 68–77, Jan. 2025, Accessed: Dec. 09, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/17178